This is an appeal from a judgment on demurrer to a petition for a writ of certiorari. The object of the petition was to vacate proceedings of the board of equalization in 1905, by which the board added very largely to the assessed valuation of patented mines and, in a less degree, of work horses and saddle horses, in Cochise county and other counties in Arizona. It was alleged that by these proceedings the board increased the total valuation of property in the territory and increased the valuation of the petitioner's property of the above-mentioned kinds. The writ had been issued by a single justice, returnable before the full bench, but the case was heard on the demurrer by consent, and by the judgment the demurrer was sustained and the writ was quashed.

2

The errors alleged are two: First, that while the board, for purposes of equalizing, might add to the total value of the property in one county and diminish that of property in another, it had no power toin crease the total valuation of property in the territory above the sum of the returns from the boards of supervisors of the several counties; and second, that the board was bound to deal with the valuation of each county as a whole, and could not increase or diminish the valuations of particular classes of property within a county. The power of the board depends, of course, upon statute, and it is said that the statute of Arizona was taken almost verbatim from one of Colorado, which had been construed by the supreme court of that state in accordance with the first of the petitioner's above contentions before it was adopted by Arizona. People ex rel. Crawford v. Lothrop, 3 Colo. 428. The construction, it is said, goes with the act. Henrietta Min. & Mill. Co. v. Gardner, 173 U. S. 123, 130, 43 L. ed. 637, 640, 19 Sup. Ct. Rep. 327. The second contention is based on an interpretation of the statutes, the supposed absence of an express grant of power, and later decisions in Colorado and other states.

3

On the other hand, while this court cannot refuse to exercise its own judgment, it naturally will lean toward the interpretation of a local statute adopted by the local court. Sweeney v. Lomme, 22 Wall. 208, 22 L. ed. 727; Northern P. R. Co. v. Hambly, 154 U. S. 349, 361, 38 L. ed. 1009, 1014, 14 Sup. Ct. Rep. 983; Fox v. Haarstick, 156 U. S. 674, 679, 39 L. ed. 576, 578, 15 Sup. Ct. Rep. 457. And again, when, for a considerable time, a statute notoriously has received a construction in practice from those whose duty it is to carry it out, and afterwards is re-enacted in the same words, it may be presumed that the construction is satisfactory to the legislature, unless plainly erroneous, since otherwise naturally the words would have been changed. New York, N. H. & H. R. Co. v. Interstate Commerce Commission, 200 U. S. 361, 401, 402, 50 L. ed. 515, 525, 526, 26 Sup. Ct. Rep. 272. The statute of Arizona was re-enacted in 1901 and was said by the supreme court to have been construed by the board against the petitioner's contention ever since the board was created, eighteen years before. Even apart from the re-enactment a certain weight attaches to this fact. United States v. Finnell, 185 U. S. 236, 243, 244, 46 L. ed. 890, 893, 22 Sup. Ct. Rep. 633; United States v. Sweet, 189 U. S. 471, 47 L. ed. 907, 23 Sup. Ct. Rep. 638. The presumption that the codifiers of 1901 knew and approved the practice of the board certainly is as strong as the presumption that the original enactors of the statute knew a single decision in another state; and it is more important, since it refers to a later time.

4

As an original question the construction adopted by the supreme court appears to us at least as reasonable as the opposite one contended for, and the variations in the Arizona act from the prototype, if Colorado furnished the prototype, and the different background against which it was to be construed, seem to us to have warranted the refusal to be bound by the Colorado case.

5

We give a section of the General Laws of Colorado, 1877, and of the Revised Statutes of Arizona side by side.

6

2282. Sec. 43. Said board shall ascertain whether the valuation of real estate in each county bears a fair relation or proportion to the valuation in all other counties of the state, and on such examination they may increase or diminish the aggregate valuation of real estate in any county as much as, in their judgment, may be necessary to produce a just relation between all the valuations of real estate in the state; but in no instance shall they reduce the aggregate valuation of all the counties below the aggregate valuation as returned by the clerks of the several counties.

7

3880. (Sec. 50.) The said board shall ascertain whether the valuation of property in each county bears a fair relation or proportion to the valuation in all other counties in the territory, and on such examination they may increase or diminish the valuation of property in any county as much as, in their judgmnt , may be necessary to produce a just relation between all the valuations of property in the territory; but in no instance shall they reduce the aggregate valuation of all the counties below the aggregate valuation as returned by the boards of supervisors of the several counties. And said board shall, at the same time, fix the rate of taxes for territorial purposes which is to be levied and collected in each county. For convenience we take up the second of the alleged errors first. It will be seen that the word 'property' takes the place of 'real estate' at the beginning, and that the power given, instead of being only a power to increase or diminish the aggregate valuation of real estate in any county, is to increase or diminish the valuation of property (not the property) in (not of) any county. The word 'aggregate' is left out, and the fact that it was left out favors the construction that apart from that fact would be reasonable, that the power extends to the valuation of any property, and is not confined to the valuation of all the property as one whole. This construction is further favored by the purpose of the changes in valuation, which is to 'produce a just relation between all the valuations of property in the territory.' This phrase is interstitial in its working. It does not confine the equality to the valuations by county, but extends it to all the valuations of property. Yet a further argument may be drawn from the language of § 3874: 'No assessor, board of supervisors, or the territorial board of equalization shall assess any real estate at a less valuation than 75 cents per acre.' This recognizes the power of the board to deal with a special class of property, and we may add, by way of anticipation, by also recognizing a function of assessment, does much to make inapplicable the reasoning of the Colorado decision upon the other point.

8

It seems to have been argued below that at least the board was confined to dealing with property by the classes mentioned in other sections of the statutes, especially §§ 3849, 3861, 3877. But the classifications and specifications provided for in those sections do not affect the power expressly given by § 3880, as we have construed the latter, and further, by § 3877 the territorial board is given power in very broad terms to change the list. It is not necessary to rely on this power to change the list for the power of the board to change valuations of a particular class of property. It is mentioned simply to show that the powers given by 3880 are not diminished by other provisions.

9

The first contention of the petitioner needs but a few words in addition to what we have said. The power to increase the valuation of property in any county is as power to increase it in all, or at least, to increase the valuation of some kinds of property in all, so as to produce a just relation between them and the other valuations left undisturbed. We find nothing in the statute that requires the increase to be so adjusted that the total valuation shall be unchanged. On the contrary, the prohibition against reducing it implies that the board has the power of change, and, but for the prohibition, might reduce the total. Therefore it may add to the total since the law does not forbid that. The Colorado decision to the contrary turned partly on the notion, which has been shown to be inapplicable to Arizona, that the board of equalization had no function of assessment. It also turned in part, at least, on the Constitution of the state, to which, of course, the statute was subject. There was no Constitution to be conformed to in Arizona, and therefore the construction of the statute depends on the meaning of the words alone, and the supreme court of the territory, in construing them, was left at large.